Oakland Athletics manager Bob Melvin, left, argues with umpire Angel Hernandez after a review failed to turn a double by Adam Rosales into a home run in the ninth inning of the A's baseball game against the Cleveland Indians on Wednesday, May 8, 2013, in Cleveland. Melvin was ejected. The Indians won 4-3. (AP Photo/Mark Duncan)
Washington Nationals general manager Mike Rizzo (left) looks on as newly-acquired pitcher Rafael Soriano models his jersey Jan. 17, 2013, during an introductory news conference at Nationals Park in Washington. Rizzo also discussed the three-team trade that sent Michael Morse to the Seattle Mariners in exchange for pitching prospect A.J. Cole from the Oakland Athletics. (Associated Press)
**FILE** Washington Nationals general manager Mike Rizzo (left) looks on as newly acquired pitcher Rafael Soriano models his jersey during an introductory news conference at Nationals Park in Washington on Jan. 17, 2013. Rizzo also discussed the three-team trade that sent Michael Morse to the Seattle Mariners in exchange for pitching prospect A.J. Cole from the Oakland Athletics. (Associated Press)
Washington Nationals general manager Mike Rizzo, left, looks on as newly acquired pitcher Rafael Soriano models his jersey during an introductory news conference at Nationals Park, Thursday, Jan. 17, 2013, in Washington. Rizzo also discussed the three-team trade that sent Michael Morse to the Seattle Mariners in exchange for pitching prospect A.J. Cole from the Oakland Athletics. (AP Photo/ Evan Vucci)
**FILE** Washington Nationals general manager Mike Rizzo (left) looks on as newly acquired pitcher Rafael Soriano models his jersey during an introductory news conference at Nationals Park in Washington on Jan. 17, 2013. Rizzo also discussed the three-team trade that sent Michael Morse to the Seattle Mariners in exchange for pitching prospect A.J. Cole from the Oakland Athletics. (Associated Press)
Washington Nationals general manager Mike Rizzo, left, shakes hands with newly acquired pitcher Rafael Soriano during an introductory news conference at Nationals Park, Thursday, Jan. 17, 2013, in Washington. Rizzo also discussed the three-team trade that sent Michael Morse to the Seattle Mariners in exchange for pitching prospect A.J. Cole from the Oakland Athletics. (AP Photo/ Evan Vucci)
FILE - This Oct. 3, 2012 file photo shows Texas Rangers starting pitcher Ryan Dempster throwing against the Oakland Athletics during the first inning of a baseball game in Oakland, Calif. Two people familiar with the negotiations say the Boston Red Sox have agreed to a $26.5 million, two-year contract with Dempster. The people spoke on condition of anonymity Thursday, Dec. 13, 2012, because the agreement is pending a physical. (AP Photo/Marcio Jose Sanchez, File)
FILE - This Oct. 3, 2012 file photo shows Texas Rangers starting pitcher Ryan Dempster throwing against the Oakland Athletics during the first inning of a baseball game in Oakland, Calif. Two people familiar with the negotiations say the Boston Red Sox have agreed to a $26.5 million, two-year contract with Dempster. The people spoke on condition of anonymity Thursday, Dec. 13, 2012, because the agreement is pending a physical. (AP Photo/Marcio Jose Sanchez, File)
Tampa Bay Rays relief pitcher J.P. Howell delivers to the Oakland Athletics during the seventh inning of a baseball game Saturday, Aug. 25, 2012, in St. Petersburg, Fla. Oakland won 4-2. (AP Photo/Chris O'Meara)
